(English Medium) ICSE Class 10 - CISCE Question Bank Solutions for Chemistry

what effect does the concentration of [H₃O⁺] ion have on solution?

Do basic solutions also have H⁺_(aq)? Why are they basic?

Write balanced equation to satisfy the following statement:

\[\ce{Acid + Active metal -> Salt + hydrogen}\]

Write balanced equation to satisfy the following statement:

\[\ce{Acid + Base -> Salt + water}\]

Write balanced equation to satisfy the following statement:

\[\ce{Acid + Carbonate or bicarbonate -> Salt + water + Carbon dioxide}\]

Write balanced equation to satisfy the following statement:

\[\ce{Acid + Sulphite or bisulphite -> Salt + water + sulphur dioxide}\]

Write balanced equation to satisfy the following statement:

\[\ce{Acid + sulphide -> Salt + Hydrogen sulphide}\]

You are supplied with five solutions: A, B, C, D and E with pH values as follows: A = 1.8, B = 7, C = 8.5, D = 13, and E = 5

Classify these solutions as neutral, slightly or strongly acidic and slightly or strongly alkaline.

Which solution would be most likely to liberate hydrogen with magnesium powder. Give a word equation for each reaction.

Name a white, insoluble oxide that dissolves when fused with caustic soda or caustic potash.

Name:

a compound containing zinc in the anion

Classify the following solutions as acids, bases or salts.

Ammonium hydroxide, barium chloride, sodium chloride, sodium hydroxide, H₂SO₄ and HNO₃

Powdered sodium chloride (common salt) does not conduct an electric current, but it does so when ______ or when ______.

Define the following term: 

Electrolysis

What is the difference between:

Electrolytic dissociation and ionisation.

You are provided with two reagent bottles marked A and B. One of which contains NH₄OH solution and the other contains NaOH solution. How will you identify them by a chemical test?

What do you understand by the following:

Analysis

What do you understand by the following:

Qualitative analysis

What do you understand by the following:

Reagent

What do you understand by the following:

Precipitation

A solution of caustic soda (NaOH) in water or when fused, conducts an electric current. What is the similarity in these two cases?